The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Sep. 29, 1989
Ying H So, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A polymer comprising a backbone portion containing at least one amide moiety and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties is prepared by contacting a polyisocyanate with a compound containing at least two end moieties selected from the following: imidazole, benzimidazole, benzoxazole, or benzothiazole, under reaction conditions sufficient to form the corresponding polymer containing amide moieties are disclosed. The process of the invention is suitable for the preparation of thermoset polymers which are advantageously free of surface defects, since a solvent is not required and no volatiles are evolved during the curing process. Urethane and/or urea polymers comprising a backbone portion containing at least one urea or urethane moiety, at least one amide moiety, and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties are also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile